Core-drilling apparatus.



c. A. TERRY.

GORE DRILLING APPARATUS.

APPLIOATION FILED MAY 29,1907.

Patented Nov. 17,1908.

4 SHBETS-SHEET 1.

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WITNESSES: .M/M %wn wfiiww INVENVTOR a m RNEYS G. A. TERRY. GOREDRILLING APPARATUS. APPLIOATIOH I'ILED HAY 29,1907.

904,161 Patented Nov. 17, 1908. 4 SHEETS-SHEET 2.

WITNESSES: 3 INVENTOR s" Y I, I 4 7 BY f 22 ATORNEYS C. A. TERRY.

GORE DRILLING APPARATUS.

APPLIOATION FILED MAY 29,1907.

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C. A. TERRY. GORE DRILLING APPARATUS.

APPLICATION FILED MAY29,1907.

Patented Nov. 17, 1908:

4 SHEETS-SHEET 4.

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AQXX.

COLEMAN A. TERRY, OF NEW YORK, N. Y.

CORE-DRILLDN'G APPARATUS.

Specification of Letters Patent.

Patented Nov. 17, 1908.

Application filed May 29, 1907. Serial No. 376,298.

To all whom it mu y concern:

Be it known that I, Conmux A. TERRY, a citizen of the lTnited States ofAmerica, and a resident of the borough of Manhattan, of the city of NewYork, county and State of New York, have invented certain new and usefulImprovements in Core-Drilling Apparatus, of which the following is aspecification, reference being had to the accompanying drawings, forminga part thereof.

My invention relates to improvements in drillingapparatus, andparticularly to core drills.

My invention consists in many novel details of construction andcombination of parts, and particularly in a novel form and constructionof the supporting members can ployed for the drill, in an improvedhydraulic feed therefor, in improved driving means including means bywhich the drill may be driven at will at widely different speeds, and inhoisting means combined with said driving means, all as will be fullyset forth in the following specification.

In order that. my invention may be thorou hly understood I will nowdescribe in de lai an embodiment thereof, having reference to theaccompanying drawings, and will then point out the novel features inclaims.

In the drawin s: Figure 1 is a view in front elevation of a drillingapparatus em bodying my invention. Fig. 2 is a view in side elevationthereof. Fig. 3 is a view in sectional elevation substantially upon theplane of the line 3-3 of Fig. 2. Fig. 4 is a detail view in horizontalsection of certain parts thereof, the plane of section being takensubstantially upon the line 4--4 of Fig. 1. Fi 5 is a front view insectional elevation oi the )arts shown in Fig. 4, the plane of sectioneing taken substantially upon the line 55 of Fig. 4. Fig. 6 is a detailview in sectional elevation of the supporting elements, the plane ofsection being taken at right angles to the plane of section of Fig. 5.

F 1g. 7 is a detail view in transverse section of a regulating valveemployed. Fig. 8 is a view in longitudinal section therethrough, thevalve plug being shown in side elevation.

The supporting elements for the drill comprise a frame member 10, anintermediate me'mber 11, and a drill carrying member 12. The framemember 10 is mounted upon a base-plate 13, being suitably boltedthereto, and is provided with a horizontal bearing hub 14 whichconstitutes one of the driving shaft bearings, and an annular projection15 disposed concentricallytherewith. The intermediate member 11comprises a ring-like portion 16 fitted to the said annular projection15, a vertical hub 17 located at one side of the said rin and laterallyprojectin lugs 18 dispose at the other sideof sai ring. ed with respectto the member 10 as to permit of its being swung with respect theretoaround the axial center of the drive shaft bearing 14, the said partsbeing so constructed as to permit of such movement through the entire360 degrees of the circle. In order to clamp the said parts together inwhatever position they may have been adjusted, I have provided clampingbolts 26 which pass through holes in the member 10, the said boltsprovided with overhanging heads 27 which engage the annular projection15 of the member 11. Nuts 28 are fitted upon the other ends of saidbolts, said nuts engaging the rear face of the frame member 10. Thedrill carrying member 12 is provided with vertical bearing members 19which receive the drill rods and spindle, and with hubs 20 complementaryto the vertical hub 17, a pintle pin 21 being received within the saidhubs, whereby the said hubs and pintle pin form a hinged connectionbetween the said members 11 and 12. The body portion of the member 12has an annular flange 22 fitted to a corresponding annular flange 23 ofthe member 11, so that when the members 12 and 11 are brought togetherto a normal position, a firm and steady joint will be formed betweenthem, the said members being clamped together by means of a clampin bolt24 hinged tothe lugs 18, the nut of said clamping bolt arranged toengage corresponding lugs 25 with which the said member 12 is provided.

From the foregoing it will be seen that the members 11 and 12 aretogether so ported from the member 10, the said members 11 and 12 beingarranged in their locked-together condition to be axially adjusted uponthe said member 10, so that the drill rod carried in the bearings 19 maybe caused to point in any direction around the circle. Once properlyadjusted, the two members 10 and 11 will be clamped positively together,and the member 12 may then be swung upon the pivot in 21, so as to swingthe bearings 19 out of line with the drill hole, when desired. When theyare swung back. again The said member 11 is thus so mount-.

they'may be solidly clamped in position, the construction beingsuch asto causeall the parts to be held exceedingly rigid when so clamped.

Mounted within the vertical bearing members 19 is a sleeve or quill 29,the upper drill and lifting movements of the drill rods 1 have provldedsuitably controlled hydraulic means by which pressure may be appliedlongitudinally thereto in either direction. The hydraulic meanscomprises two cylinders 36, 36, arranged axially in a plane with theaxis of rotation of the quill 29 and carried by the member 19. Mountedin each cylinder 36 is a piston 37, each said piston secured to a pistonrod 38, the upper ends of said piston rods bolted to a cross head 39.The cross head 39 is arranged between thrust bearings 40 and 41, theouter members of which are carried by thequill 29. The lower ends of thecylinders 36 are connected by means of branch pipes 42 with a common ipe43 leading to the main controllin valve 44, while the upper ends of saidcy inders .are connected by means of similar branch pipes 45 with a pipe46 common thereto, which also leads to the main controlling valve 44. Aninlet pipe 47 likewise connects with the said controlling valve, and anexhaust branch 48 leads from the opposite side of said valve, the saidexhaust branch 48 itself independently controlled by means of a specialexhaust valve 49. The valve plug of the valve 44 (which is shown clearlyat 50 in detail views 7 and 8) has cross-over ports which are arrangedto connect ports or passages leading to the various pipes 46, 48, 47,43, together at will, the said valve plug having an operating handle 51secured thereto, by which the same may be turned to various positions.When it is in such a position as is shown in Fig. 7 it will connectinlet through the pipe 47 with the lower ends of the hydraulic cylindersthrough the pipe 43 and branches 42. At the same time it will connectthe upper end of the cylinders through branches 45 and pipe 46 with thedischarge 48. This will admit water to the lower end of the cylinders tolift the pistons, while permittin water lifted by the pistons in theupper en s of thecylinders to escape.

If the handle 51 is moved to an upright po-;

'sition-the web of the plug 50 will close the the said bevel ports orpassages leadi to both pipes 43 and 46, hence closing a mission from theinlet 47 in either direction. This is the off position. If the handle"is thrown over, to the right, water will be admitted to the upper end ofthe cylinders by the connection between the admission pipe 47 and thepipe 46, while it will permit exhaust by the con nection between thelower pipe 43 and the discharge pipe 48.; I have provided the valve 49for the purpose of controllin the speed of movement of the pistons ineit er direction, as I preferdirection at all times I desire anymovement at all. -The speed of movement of the pistons will necessarilybe limited to the speed at which the water is allowed to exhaust, so

properly regulate the speed at all times. Thus I may delicately adjustthis exhaust valve, and, having once so adjusted it, movements of hecontrolling lever will not change the speed of feed. I may turn thewater on and oil at will to feed or stop feeding, but, as I always turnthe said handle 51 the entire distance, there is no necessity of anydelicacy in handling same.

I preferably provide a gage 52 by which the pressure in the upper endsof the cylinders may be noted, whereby the operator may watch thefeeding pressure at all times, and regulate the graduating valve 49 inaccordance therewith, while I alsoconveniently provide drip cocks 53 atthe lower end of the branches 42, so that the lower ends of thecylinders 36 may be emptied at will, and a check valve 54 upon the inletpipe 47 to prevent possible backing up of water in the pipe 47 shouldpressure at the source ofsupply fail.

Turning now to Fig. 2, it will be seen that the base plate 13 supportsanother frame member 55 in addition to the frame member 10. The framemember has a bearing 56 which constitutes a second bearing member forthe drive shaft 35. The two bearing members 10 and 55 are each providedwith bearings 57 arranged parallel to, and axially in line with, thebearings 14 and 56, said bearings 57 forming a support for acounter=shaft 58. This counter-shaft carries a winding drum 59, a spurgear 60, and a brake drum 61. The drive shaft 35 carries a drive pinion62' which engages an intermediate spur 'ear 63,'said intermediate spurgear mounte to rotate with an intermediate pinion 64, in turn arrangedin mesh with the spur gear 60. The clutch mechanism 65, controlled by anoperating lever 66, connects and disconnects the pinion 62 into and outof driving relation with the drive shaft 35, wherebythe driving of thecounter shaft 58 and drum 59 carried thereby is controlled at will,while a hand brake 67, engaging the band wheel 61, is controlled bymeans ably turn the water pressure full on in either that, by cuttingdown the discharge, I may f of a lever 68, for the purpose of retardingthe rotation thereof when desired.

The apparatus last described constitutes a winding apparatus, or hoistas it is commonly called, such hoist being employed in drillingapparatus of this kind for the purpose of lifting and lowering the drillrods when necessary, but in the present instance I employ the countershaft 58 for another purpose as well. The said counter shaft is, it willbe noticed, geared down considerably with respect to the drive shaft 35,so that it'will rotate at a very much less rate of speed than will thesaid drive shaft. A drill of this description is sometimes used with oneclass of drill head and sometimes with another; for instance it is oftenused fordrilling under the shot system, in which case the drill shouldrotate at a high rate of speed. At such times I arrange and locate thebevel gear wheels 32, 34 as above described and as illustrated in thedrawings, but ifa chipping cutter be employed in the drill, then thedrill should rotate very much more slowly, and at such times I removethe bevel gears 32, 34: from'their present positions, to the positionsshown in dotted outline in Fig. 2. Thus I remove the bevel gear wheel34. from the shaft 35 and mount it upon the shaft 58, while I raise theposition of the bevel gear wheel 32 correspondingly so as to bring thetwo said wheels properly in mesh. The relationship of gearing betweenthe shafts 35 and 58 is such that the said shaft 58 rotates at just theright speed to properly drive the drill with the bevel gears in thisposition, so that, by this means, I provide a very simple arrangementfor driving the drill at two radically different speeds, as may. bedesired, without changing the speed of rotation of the drive shaft,while also providing a convenient hoist for the purposes required.

What I claim is: 1. In drilling apparatus, the combination withsupporting elements comprising a frame containing a drive shaft bearing,an intermediate member fitted thereto in rotative engagement therewithconcentrically with respect to the axis of the said bearing, saidintermediate member havin a cylindrical bore therethrough, and a d rillcarrying member pivotally connected with the said intermediate member,clamping means for securing the said intermediate and drill carryingmembers together, and a plurality of clamping bolts fitted in orificesin the said frame concentrically therein around the said drive shaft andbetween the walls of the concentric bore of the said intermediate memberand the axial center thereof, said bolts having overhanging headsadapted to engage the faces of the said intermediate.

' member over the walls of the bore thereof,

whereby the two said members may be ading and an annular projectionconcentric therewith, an intermediate member comprising a ring-likestructure litted to and arranged to surround the said annular projection and provided with a portion constituting one member of a hinge, anda drill carrying member pivotally connected with the said last namedportion, clamping means for securing the said intermediate and drillcarrying members together, and a" plurality of clamp bolts arranged inthe annular projection of the said frame member within and adjacent tothe inner circular wall of the ring-like portion of the intermediatemember, the said bolts provided with overhanging portions adapted toengage the outer faces of the said ring-like portion whereby the twosaid members may be adjusted rotatively to any position with respect toeach other and then clamped in any such adjusted position; of a driveshaft mounted in the said drive shaft bearing, a drill spindle mountedin the said drill carryin member, and gearing connecting the said riveshaft and drill spindle together in driving relation.

3. In drilling ap aratus the combination wvith a drill spind e of ahydraulic feed therefor including a main-inlet controlling valve havingthree positions: one to admit water for feeding the drill spindle in onedirection, another to admit water for feeding the spindle in theopposite direction, and the third for entirely closing against theadmission of water in either direction; and an independent graduatingvalve for regulating the flow of water, in either of the first twomentioned positions of the said controlling valve.

4. In drilling apparatus the combination with a drill spindle, ofhydraulic feeding means therefor comprising hydraulic cylinders, pistonstherein, a yoke connecting with the drill spindle, piston rods betweenthe yoke and the pistons, pipe connections for the cylinders comprisingbranch pipes communicating with the lower ends of the cylinders, otherbranch pipes connecting with the upper eids of the cylinders, acontrolling valve with which said branches are connected, a common inletleading to said valve,-a common exhaust leadin from said valve, thevalve lug of said vaIve arranged to connect the inlet and the exhaust.alternately eitherof'its said positions,

with the said upper and lower branches at with a horizontal drive shaft,a drill spindle mounted to rotate about an axis at right angles to theaxis of said drive shaft, and

bearings for the said drill spindle above and below the axis of saiddrive shaft; of a countershaft mounted to rotate parallel with saiddrive shaft and geared thereto to rotate at difierent speeds relativelytherewith, and bevel gears adapted to connect either of the said shaftsin driving rotation with the said drill spindle.

6. In drilling apparatus the combination with a horizontal drive shaft,a drill spindle mounted .to rotate about an axis at right angles to theaxis of said drive shaft, and bearings for the said drill spindle aboveand below the axis of said drive shaft; of a countershaft mounted torotate parallel with said drive shaft and geared thereto to rotate atdifferent speeds relatively therewith, bevel gears'adaltled to connecteitherofthe saidshaftsin 'ving relation with the said drill s indle, andclutch mechanism for controlhug the drive of said'countershaft from saiddriveshaft.'

7. In drillingapparatus the combination with a horizontal drive shaft, adrill spindle mounted to rotate abogt an axis at right angles to theaxis of said drive shaft, and

bearings for the said drill spindle above and I below the axis of saiddrive shaft; of a countershaft mounted to rotate parallel with saiddrive shaft and geared thereto to rotate at different speeds relativelytherewith, bevel gears adapted to connect either of the said shafts indriving relation with the said drill spindle, and, clutch mechanism forcontrolling the drive of said countershaft from said drive shaft, saidcountershaft also rovidedwith a winding drum, substantial y as setforth.

COLEMAN A. TERRY.

Witnesses:

D. HOWARD HAYwoon, LYMAN S. ANDREWS, Jr.

